125 lines
3.1 KiB
Haskell
125 lines
3.1 KiB
Haskell
{- git-annex command
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-
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- Copyright 2010 Joey Hess <joey@kitenet.net>
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-
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- Licensed under the GNU GPL version 3 or higher.
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-}
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module Command.Init where
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import Control.Monad.State (liftIO)
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import Control.Monad (when, unless)
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import System.Directory
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import System.FilePath
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import Command
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import qualified Annex
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import qualified GitRepo as Git
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import UUID
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import Version
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import Messages
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import Locations
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import Types
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import Utility
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command :: [Command]
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command = [repoCommand "init" paramDesc seek
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"initialize git-annex with repository description"]
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seek :: [CommandSeek]
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seek = [withWords start]
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{- Stores description for the repository etc. -}
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start :: CommandStartWords
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start ws = do
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when (null description) $
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error "please specify a description of this repository\n"
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showStart "init" description
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next $ perform description
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where
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description = unwords ws
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perform :: String -> CommandPerform
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perform description = do
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g <- Annex.gitRepo
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u <- getUUID g
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setVersion
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if Git.repoIsLocalBare g
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then do
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showLongNote $
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"This is a bare repository, so its description cannot be committed.\n" ++
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"To record the description, run this command in a clone of this repository:\n" ++
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" git annex describe " ++ show u ++ " " ++ show description ++ "\n\n"
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next $ return True
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else do
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describeUUID u description
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liftIO $ gitAttributesWrite g
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gitPreCommitHookWrite g
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next cleanup
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cleanup :: CommandCleanup
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cleanup = do
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g <- Annex.gitRepo
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logfile <- uuidLog
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liftIO $ Git.run g "add" [File logfile]
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liftIO $ Git.run g "commit"
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[ Params "-q -m"
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, Param "git annex repository description"
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, File logfile
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]
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return True
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{- configure git to use union merge driver on state files, if it is not
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- already -}
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gitAttributesWrite :: Git.Repo -> IO ()
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gitAttributesWrite repo = do
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exists <- doesFileExist attributes
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if not exists
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then do
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safeWriteFile attributes $ unlines attrLines
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commit
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else do
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content <- readFile attributes
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let present = lines content
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let missing = filter (\l -> not $ l `elem` present) attrLines
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unless (null missing) $ do
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appendFile attributes $ unlines missing
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commit
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where
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attributes = Git.attributes repo
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commit = do
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Git.run repo "add" [Param attributes]
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Git.run repo "commit"
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[ Params "-q -m"
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, Param "git-annex setup"
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, Param attributes
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]
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attrLines :: [String]
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attrLines =
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[ stateDir </> "*.log merge=union"
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, stateDir </> "*/*/*.log merge=union"
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]
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{- set up a git pre-commit hook, if one is not already present -}
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gitPreCommitHookWrite :: Git.Repo -> Annex ()
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gitPreCommitHookWrite repo = do
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exists <- liftIO $ doesFileExist hook
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if exists
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then warning $ "pre-commit hook (" ++ hook ++ ") already exists, not configuring"
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else liftIO $ do
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safeWriteFile hook preCommitScript
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p <- getPermissions hook
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setPermissions hook $ p {executable = True}
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where
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hook = preCommitHook repo
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preCommitHook :: Git.Repo -> FilePath
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preCommitHook repo =
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Git.workTree repo ++ "/" ++ Git.gitDir repo ++ "/hooks/pre-commit"
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preCommitScript :: String
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preCommitScript =
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"#!/bin/sh\n" ++
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"# automatically configured by git-annex\n" ++
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"git annex pre-commit .\n"
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